Method for implementing data mapping and transmission and related product

ABSTRACT

A method for implementing data mapping and transmission includes that: data to be transmitted is segmented into N code blocks, the N code blocks are divided into M code block groups (CBGs), and a difference between numbers of code blocks in any two CBGs being less than or equal to a preset value, and the M CBGs are mapped and transmitted on at least one transmission unit. The M CBGs include a first CBG and a second CBG, and a value of a parameter of information amount of the first CBG and a value of a parameter of information amount of the second CBG satisfy a preset condition; and the at least one transmission unit includes a first physical resource corresponding to the first CBG and a second physical resource corresponding to the second CBG, and the first physical resource is ahead of the second physical resource in time domain.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a U.S. continuation application of U.S. patentapplication Ser. No. 16/696,797, entitled “METHOD FOR IMPLEMENTING DATAMAPPING AND TRANSMISSION AND RELATED PRODUCT”, filed on Jun. 6, 2017,which is a U.S. continuation application of International ApplicationNo. PCT/CN 2017/087259, entitled “METHOD FOR DATA TRANSMISSION BYMAPPING AND RELATED PRODUCT”, filed on Jun. 6, 2017, the contents ofwhich are hereby incorporated by reference in their entirety.

TECHNICAL FIELD

The disclosure relates to the technical field of communications, andparticularly to a method for implementing data mapping and transmissionand a related product.

BACKGROUND

5th-generation (SG) new radio (NR) is a subject raised recently by the3rd generation partnership project (3GPP). With the in-depth discussionabout a 5G technology, on one hand, because of backward compatibility ofa communication system, a new technology researched and developed latertends to be compatible with a technology which has been standardizedbefore; and on the other hand, because of existence of numerous existingdesigns for 4th generation (4G) mobile communication long term evolution(LTE), flexibility of 5G may inevitably be sacrificed for compatibilityto further bring reduction in performance. Therefore, researches in thetwo directions are concurrently made by the 3GPP at present. Herein, thetechnical discussion group not considering backward compatibility iscalled 5G NR.

In an LTE system, a transport block (TB) refers to a data blockincluding a media access control (MAC) protocol data unit (PDU). The TBmay be transmitted in a transmission time interval (TTI), and is also aunit for data retransmission in hybrid automatic repeat request (HARQ).It is specified in the LTE system that, for each terminal, no more thantwo TBs may be transmitted in one TTI. A TB in the LTE system may bedivided into multiple relatively small code blocks, and each code blockis independently encoded. After any code block is failed to be decoded,a receiver feeds back a piece of unified acknowledgement (ACK)/negativeacknowledgement (NACK) information to a sender, and the sender willretransmit the whole TB.

For improving transmission efficiency, it has been determined in a 5G NRsystem that code block group (CBG)-based feedback and retransmission issupported. Herein, a TB includes at least one CBG, and a CBG includes atleast one code block. A sender is only required to retransmit a codeblock in a CBG which has failed to be decoded, and is not required toretransmit the whole TB.

SUMMARY

The aspects of the disclosure provide a method for implementing datamapping and transmission, a sender and a receiver.

A first aspect of the disclosure provides a method for implementing datamapping and transmission, which includes the following operations.

Data to be transmitted is segmented into N code blocks, and the N codeblocks are divided into M CBGs. Here, a difference between numbers ofcode blocks in any two CBGs is less than or equal to a preset value, Nand M are positive integers, N is greater than or equal to M, and M isgreater than or equal to 2.

The M CBGs are mapped to at least one transmission unit and the M CBGsare transmitted on the at least one transmission unit. Here, the M CBGsinclude a first CBG and a second CBG, and a value of a parameter ofinformation amount of the first CBG and a value of a parameter ofinformation amount of the second CBG satisfy a preset condition. The atleast one transmission unit includes a first physical resourcecorresponding to the first CBG and a second physical resourcecorresponding to the second CBG, and the first physical resource isahead of the second physical resource in time domain.

A second aspect of the disclosure provides a method for implementingdata mapping and transmission, which includes the following operations.

M CBGs mapped to at least one transmission unit are received. Herein,the M CBGs are obtained by dividing N code blocks, the N code blocks areobtained by segmenting data to be transmitted, a difference betweennumbers of code blocks in any two CBGs is less than or equal to a presetvalue, the M CBGs include a first CBG and a second CBG, and a value of aparameter of information amount of the first CBG and a value of aparameter of information amount of the second CBG satisfy a presetcondition; the at least one transmission unit includes a first physicalresource corresponding to the first CBG and a second physical resourcecorresponding to the second CBG, and the first physical resource isahead of the second physical resource in time domain, N and M arepositive integers, N is greater than or equal to M, and M is greaterthan or equal to 2.

Each of the M CBGs is decoded after the respective CBG is received.

A third aspect of the disclosure provides a sender, which includes aprocessor, a memory, a radio frequency chip and a program. The memory isconfigured to store the program. The processor is configured to executethe program to: segment data to be transmitted into N code blocks, anddivide the N code blocks into M code block groups (CBGs), where adifference between numbers of code blocks in any two CBGs is less thanor equal to a preset value, N and M are positive integers, N is greaterthan or equal to M, and M is greater than or equal to 2. The radiofrequency chip is configured to map the M CBGs to at least onetransmission unit, and transmit the M CBGs on the at least onetransmission unit. The M CBGs include a first CBG and a second CBG, anda value of a parameter of information amount of the first CBG and avalue of a parameter of information amount of the second CBG satisfy apreset condition; and the at least one transmission unit includes afirst physical resource corresponding to the first CBG and a secondphysical resource corresponding to the second CBG, and the firstphysical resource is ahead of the second physical resource in timedomain.

A fourth aspect of the disclosure provides a receiver, which includes aprocessor, a memory, a communication interface and a program. The memoryis configured to store the program. The communication interface isconfigured to: receive M code block groups (CBGs) mapped to at least onetransmission unit, where the M CBGs are obtained by dividing N codeblocks, the N code blocks are obtained by segmenting data to betransmitted, a difference between numbers of code blocks in any two CBGsis less than or equal to a preset value, the M CBGs include a first CBGand a second CBG, and a value of a parameter of information amount ofthe first CBG and a value of a parameter of information amount of thesecond CBG satisfy a preset condition; the at least one transmissionunit includes a first physical resource corresponding to the first CBGand a second physical resource corresponding to the second CBG, and thefirst physical resource is ahead of the second physical resource in timedomain, N and M are positive integers, N is greater than or equal to M,and M is greater than or equal to 2. The processor is configured todecode each of the M CBGs after the respective CBG is received.

BRIEF DESCRIPTION OF DRAWINGS

The drawings required to be used for descriptions about theimplementations or a related art will be simply introduced below.

FIG. 1 illustrates a network architecture of a communication systemaccording to an implementation of the disclosure.

FIG. 2 illustrates a communication schematic diagram of a method forimplementing data mapping and transmission according to animplementation of the disclosure.

FIG. 3A illustrates a schematic diagram of implementing data mapping andtransmission in a SG NR system according to an implementation of thedisclosure.

FIG. 3B illustrates another schematic diagram of implementing datamapping and transmission in a 5G NR system according to animplementation of the disclosure.

FIG. 4 illustrates a structure diagram of a sender according to animplementation of the disclosure.

FIG. 5 illustrates a structure diagram of a receiver according to animplementation of the disclosure.

FIG. 6 illustrates a functional unit composition block diagram of asender according to an implementation of the disclosure.

FIG. 7 illustrates a functional unit composition block diagram of areceiver according to an implementation of the disclosure.

DETAILED DESCRIPTION

FIG. 1 illustrates a network architecture of a communication systemaccording to an implementation of the disclosure. The communicationsystem may be, for example, a global system for mobile communications(GSM), a code division multiple access (CDMA) system, a time divisionmultiple access (TDMA) system, wideband code division multiple access(WCDMA) system, a frequency division multiple access (FDMA) system, anorthogonal frequency-division multiple access (OFDMA) system, a singlecarrier FDMA (SC-FDMA) system, a general packet radio service (GPRS)system, a long term evolution (LTE) system, a 5G NR system and othersimilar communication systems. The communication system specificallyincludes a network device and a terminal. When the terminal accesses amobile communication network provided by the network device, theterminal forms a communication connection with the network devicethrough a wireless link. Such a communication connection manner may be asingle-connection manner or a dual-connection manner or amulti-connection manner. When the communication connection manner is thesingle-connection manner, the network device may be an LTE base stationor an NR base station (also called a gNB). When the communication manneris the dual-connection manner (which may specifically be implemented bya carrier aggregation (CA) technology or implemented by multiple networkdevices), and when the terminal is connected with the multiple networkdevices, the multiple network devices include a master eNodeB (MeNB) anda secondary eNodeB (SeNB). Data is transmitted between eNodeBs throughbackhauls. The MeNB may be an LTE base station and the SeNB may be anLTE base station. Or, the MeNB may be an NR base station and the SeNBmay be an LTE base station. Or, the MeNB may be an NR base station andthe SeNB may be a NR base station.

In the implementations of the disclosure, terms “network” and “system”are often used interchangeably and their meanings may be understood bythose skilled in the art. A terminal involved in the implementations ofthe disclosure may include various handheld devices, vehicle-mounteddevices, wearable devices, computing devices or other processing devicesconnected to wireless modems, which have a wireless communicationfunction, as well as user equipment (UE), mobile stations (MSs),terminal devices and the like in various forms. For convenientdescription, the devices mentioned above are collectively referred to asterminals.

A sender described in the implementations of the disclosure may be anetwork device and, correspondingly, a receiver is a terminal. Or, thesender may be a terminal and, correspondingly, the receiver is a networkdevice. There are no limits made herein.

The technical solutions in the implementations of the disclosure will bedescribed below in combination with the drawings in detail.

FIG. 2 illustrates a flowchart of a method for implementing data mappingand transmission according to an implementation of the disclosure. Themethod is applied to a communication system including a sender and areceiver. The method includes the following operations.

At block 201, the sender segments data to be transmitted into N codeblocks and divides the N code blocks into M code block groups (CBGs).Herein, a difference between the numbers of the code blocks in any twoCBGs is less than or equal to a preset value. N and M are positiveintegers. N is greater than or equal to M, and M is greater than orequal to 2.

In at least one alternative embodiment, the preset value is 1. Thepreset value may be set by the system or set by a user. There are nolimits made herein.

At block 202, the sender maps the M CBGs oo at least one transmissionunit for bearing and transmission. The M CBGs include a first CBG and asecond CBG. A value of a parameter of information amount of the firstCBG and a value of a parameter of information amount of the second CBGsatisfy a preset condition. The at least one transmission unit includesa first physical resource corresponding to the first CBG and a secondphysical resource corresponding to the second CBG. The first physicalresource is ahead of the second physical resource in time domain.

Herein, the “ahead of” may refer to that the entire first physicalresource is ahead of the second physical resource in time domain, andmay also refer to that part of the first physical resource including astarting time point is ahead of the second physical resource in timedomain.

At block 203, a receiver receives the M CBGs mapped to the at least onetransmission unit. The M CBGs are obtained by dividing the N codeblocks. The N code blocks are obtained by segmenting the data to betransmitted. The difference between the numbers of the code blocks inany two CBGs is less than or equal to the preset value. The M CBGs atleast include the first CBG and the second CBG. A value of a parameterof information amount of the first CBG and a value of a parameter ofinformation amount of the second CBG satisfy a preset condition. The atleast one transmission unit includes the first physical resourcecorresponding to the first CBG and the second physical resourcecorresponding to the second CBG. The first physical resource is ahead ofthe second physical resource in time domain. N and M are positiveintegers. N is greater than or equal to M, and M is greater than orequal to 2.

At block 204, the receiver decodes each of the M CBGs after therespective CBG is received.

In the implementations of the disclosure, the data to be transmitted ina communication system is segmented into the M CBGs, and the M CBGs aremapped to M physical resources for bearing and transmission. The Mphysical resources at least include the first physical resourcecorresponding to the first CBG and the second physical resourcecorresponding to the second CBG. Since the value of the parameter ofinformation amount of the first CBG is greater than the value of theparameter of information amount of the second CBG and the first physicalresource is ahead of the second physical resource in time domain, thephysical resource corresponding to a CBG with a longer decoding delay inthe M continuous CBGs is ahead of the physical resource corresponding toanother CBG with a shorter decoding delay in the M continuous CBGs intime domain. Correspondingly, the receiver may receive the CBG with therelatively long decoding delay earlier and the decoding delay of the CBGmay be balanced out by transmission delays of as many as possiblesubsequent CBGs. Therefore, an overall reception delay of the data isreduced, and improvement of data transmission efficiency of thecommunication system and improvement of a user experience arefacilitated.

In at least one alternative embodiment, the parameter of informationamount may include at least one of:

a number of the code blocks in the CBG, a modulation and code level ofthe code blocks in the CBG, a code rate of the code blocks in the CBG,or a number of initial bits in the CBG.

In at least one alternative embodiment, the preset condition may includethat the value of the parameter of information amount of the first CBGis greater than the value of the parameter of information amount of thesecond CBG.

In at least one alternative embodiment, the operation that the M CBGsare mapped to the at least one transmission unit for bearing andtransmission may include that: an information amount of each of the MCBGs is determined, and a reference decoding delay of each CBG isdetermined based on an information amount of the CBG; a time-domainposition of a physical resource for each CBG is determined based on thereference decoding delay of each CBG and preset correspondences betweenreference decoding delays and time-domain positions of physicalresources, the physical resource being a transmission resourceconfigured to bear the CBG in the at least one transmission unit, andeach CBG is born and transmitted on the physical resource correspondingto the CBG based on the time-domain position of the physical resourcefor each CBG.

Herein, the correspondences may be directly proportionalcorrespondences. The directly proportional correspondences refer tothat, if the reference decoding delay of a CBG is longer, the physicalresource corresponding to the CBG is ahead of a physical resourcecorresponding to another CBG having a shorter reference decoding delayin time domain, which may also be understood as that the time-domainposition of the physical resource corresponding to the CBG is in thefront of a time domain position of a physical resource corresponding toanother CBG having a shorter reference decoding delay.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is greater than the number of the code blocks in thesecond CBG.

It can be seen that, in the example, for the CBGs including differentnumbers of code blocks, during resource mapping, the sender maypreferably map the CBG including a larger number of code blocks to thephysical resource of which the time-domain position is ahead. Therefore,the decoding delay of the CBG may be balanced out by the transmissiondelays of as many as possible subsequent CBGs, thereby facilitatingreduction of the whole data reception delay, improvement of the datatransmission efficiency and improvement of the user experience.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and the modulation and code level for the code blocks in the firstCBG is higher than the modulation and code level for the code blocks inthe second CBG.

In the example, for multiple CBGs including the same number of codeblocks, during resource mapping, the sender may preferably map the CBGfor which a relatively high modulation and code level is adopted, to thephysical resource of which the time-domain position is ahead. Therefore,the decoding delay of the CBG may be balanced out by the transmissiondelays of as many as possible subsequent CBGs, thereby facilitatingreduction of the whole data reception delay, improvement of the datatransmission efficiency and improvement of the user experience.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and the code rate of the code blocks in the first CBG is higherthan the code rate of the code blocks in the second CBG.

In the example, for multiple CBGs including the same number of codeblocks, during resource mapping, the sender may preferably map the CBGof which the code rate is relatively high to the physical resource ofwhich the time-domain position is ahead. Therefore, the decoding delayof the CBG may be balanced out by the transmission delays of as many aspossible subsequent CBGs, thereby facilitating reduction of the wholedata reception delay, improvement of the data transmission efficiencyand improvement of the user experience.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and a number of initial bits of the code blocks in the first CBG isgreater than a number of initial bits of the code blocks in the secondCBG.

In the example, for multiple CBGs including the same number of codeblocks, during resource mapping, the sender may preferably map the CBGof which the number of initial bits is relatively large to the physicalresource of which the time-domain position is ahead. Therefore, thedecoding delay of the CBG may be balanced out by the transmission delaysof as many as possible subsequent CBGs, thereby facilitating reductionof the whole data receiving delay, improvement of the data transmissionefficiency and improvement of the user experience.

In at least one alternative embodiment, the transmission unit representsa transmission resource specified by the communication system. Thephysical resource further includes a frequency-domain resource or acode-domain resource.

The implementation of the disclosure will specifically be describedbelow in combination with specific application scenarios.

As illustrated in FIG. 3A, there is made such a hypothesis that thesender is a network device and the receiver is a terminal. The networkdevice is a gNB in a SG NR system. The terminal is UE in the SG NRsystem. The data to be transmitted is segmented into ten code blocks.The ten code blocks are divided into four CBGs. The four CBGs are CBG1,CBG2, CBG3 and CBG4. The numbers of the code blocks in the CBG1, CBG2,CBG3 and CBG4 are 2, 2, 3 and 3 respectively. During physical resourcemapping, the gNB allocates a transmission unit for the four CBGs.Specifically, the gNB maps CBG3 to a physical resource 1 of thetransmission unit, maps CBG4 to a physical resource 2 of thetransmission unit, maps CBG1 to a physical resource 3 of thetransmission unit and maps CBG2 to a physical resource 4 of thetransmission unit. The physical resource 1 is ahead of the physicalresource 2 in time domain, the physical resource 2 is ahead of thephysical resource 3 in time domain, and the physical resource 3 is aheadof the physical resource 4 in time domain. The gNB bears and transmitsthe CBG3, the CBG4, the CBG1 and the CBG2 respectively on the physicalresource 1, the physical resource 2, the physical resource 3 and thephysical resource 4. Correspondingly, the UE receives the CBG3, theCBG4, the CBG1 and the CBG2 respectively on the physical resource 1, thephysical resource 2, the physical resource 3 and the physical resource4, and decodes each of the 4 CBGs after the respective CBG is received.

As illustrated in FIG. 3B, there is made such a hypothesis that thesender is a terminal and the receiver is a network device. The terminalis the UE in the SG NR system. The network device is the gNB in the SGNR system. The data to be transmitted is segmented into eight codeblocks. The eight code blocks are divided into four CBGs. The four CBGsare CBG1, CBG2, CBG3 and CBG4. Each CBG includes two code blocks.Herein, a sequence of modulation and code levels for the code blocks is:CBG2>CBG3>CBG1>CBG4. During physical resource mapping, the terminalallocates two transmission units for the four CBGs. Specifically, theterminal maps CBG2 to a physical resource 1 of the two transmissionunits, maps CBG3 to a physical resource 2 of the two transmission units,maps CBG1 to a physical resource 3 of the two transmission units andmaps CBG4 to a physical resource 4 of the two transmission units. Thephysical resource 1 is ahead of the physical resource 2 in time domain,the physical resource 2 is ahead of the physical resource 3 in timedomain, and the physical resource 3 is ahead of the physical resource 4in time domain. The UE bears and transmits the CBG2, the CBG3, the CBG1and the CBG4 respectively on the physical resource 1, the physicalresource 2, the physical resource 3 and the physical resource 4. The gNBreceives the CBG2, the CBG3, the CBG1 and the CBG4 respectively on thephysical resource 1, the physical resource 2, the physical resource 3and the physical resource 4, and decodes each of the 4 CBGs after therespective CBG is received.

Consistent with the implementation illustrated in FIG. 2, FIG. 4illustrates a structure diagram of a sender according to animplementation of the disclosure. As illustrated in the FIG. 4, thesender includes a processor, a memory, a radio frequency chip and aprogram. The program is stored in the memory and is configured to beexecuted by the processor. The program includes instructions configuredto execute the following operations.

Data to be transmitted is segmented into N code blocks, and the N codeblocks are divided into at least M CBGs. Herein, a difference betweenthe numbers of the code blocks in any two CBGs is less than or equal toa preset value. N and M are positive integers. N is greater than orequal to M, and M is greater than or equal to 2.

The M CBGs are mapped to at least one transmission unit for bearing andtransmission. The M CBGs include a first CBG and a second CBG. A valueof a parameter of information amount of the first CBG and a value of aparameter of information amount of the second CBG satisfy a presetcondition. The at least one transmission unit includes a first physicalresource corresponding to the first CBG and a second physical resourcecorresponding to the second CBG. The first physical resource is ahead ofthe second physical resource in time domain.

In the implementation of the disclosure, the data to be transmitted in acommunication system is divided into the M CBGs, and the M CBGs aremapped to M physical resources for bearing and transmission. The Mphysical resources include the first physical resource corresponding tothe first CBG and the second physical resource corresponding to thesecond CBG. Since the value of the parameter of information amount ofthe first CBG is greater than the value of the parameter of informationamount of the second CBG and the first physical resource is ahead of thesecond physical resource in time domain, the physical resourcecorresponding to a CBG with a longer decoding delay in the M continuousCBGs is ahead of a physical resource corresponding to another CBG with ashorter decoding delay in the M continuous CBGs in time domain.Correspondingly, the receiver may receive the CBG with the relativelylong decoding delay earlier. Thus, the decoding delay of the CBG may bebalanced out by transmission delays of as many as possible subsequentCBGs. Therefore, an overall reception delay of the data is reduced, andimprovement of data transmission efficiency of the communication systemand improvement of a user experience are facilitated.

In at least one alternative embodiment, the parameter of informationamount may include at least one of: the number of the code blocks in theCBG, a modulation and code level for the code blocks in the CBG, a coderate of the code blocks in the CBG, or a number of initial bits in theCBG.

In at least one alternative embodiment, the preset condition may includethat the value of the parameter of information amount of the first CBGis greater than the value of the parameter of information amount of thesecond CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is greater than the number of the code blocks in thesecond CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and the modulation and code level for the code blocks in the firstCBG is higher than the modulation and code level for the code blocks inthe second CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and the code rate of the code blocks in the first CBG is higherthan the code rate of the code blocks in the second CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and a number of initial bits of the code blocks in the first CBG isgreater than a number of initial bits of the code blocks in the secondCBG.

In at least one alternative embodiment, the transmission unit representsa transmission resource specified by a communication system.

The physical resource further includes a frequency-domain resource or acode-domain resource.

Consistent with the implementation illustrated in FIG. 2, FIG. 5illustrates a structure diagram of a receiver according to animplementation of the disclosure. As illustrated in the FIG. 5, thereceiver includes a processor, a memory, a communication interface and aprogram. The program is stored in the memory and is configured to beexecuted by the processor. The program includes instructions configuredto execute the following operations.

M CBGs mapped to at least one transmission unit are received. Herein,the M CBGs are obtained by dividing N code blocks. The N code blocks areobtained by segmenting data to be transmitted. A difference between thenumbers of the code blocks in any two CBGs is less than or equal to apreset value. The M CBGs include a first CBG and a second CBG. A valueof a parameter of information amount of the first CBG and a value of aparameter of information amount of the second CBG satisfy a presetcondition. The at least one transmission unit includes a first physicalresource corresponding to the first CBG and a second physical resourcecorresponding to the second CBG. The first physical resource is ahead ofthe second physical resource in time domain. N and M are positiveintegers. N is greater than or equal to M, and M is greater than orequal to 2.

Each of the M CBGs is decoded after the respective CBG is received.

In the implementation of the disclosure, the data to be transmitted in acommunication system is divided into the M CBGs, and the M CBGs aremapped to M physical resources for bearing and transmission. The Mphysical resources include the first physical resource corresponding tothe first CBG and the second physical resource corresponding to thesecond CBG. Since the value of the parameter of information amount ofthe first CBG is greater than the value of the parameter of informationamount of the second CBG and the first physical resource is ahead of thesecond physical resource in time domain, the physical resourcecorresponding to a CBG with a longer decoding delay in the M continuousCBGs is ahead of a physical resource corresponding to another CBG with ashorter decoding delay in the M continuous CBGs in time domain.Correspondingly, the receiver may receive the CBG with the relativelylong decoding delay earlier. Thus, the decoding delay of the CBG may bebalanced out by transmission delays of as many as possible subsequentCBGs. Therefore, an overall reception delay of the data is reduced, andimprovement of data transmission efficiency of the communication systemand improvement of a user experience are facilitated.

In at least one alternative embodiment, the parameter of informationamount includes at least one of: the number of the code blocks in theCBG, a modulation and code level for the code blocks in the CBG, a coderate of the code blocks in the CBG, or a number of initial bits in theCBG.

In at least one alternative embodiment, the preset condition may includethat the value of the parameter of information amount of the first CBGis greater than the value of the parameter of information amount of thesecond CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is greater than the number of the code blocks in thesecond CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and the modulation and code level for the code blocks in the firstCBG is higher than the modulation and code level for the code blocks inthe second CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and the code rate of the code blocks in the first CBG is higherthan the code rate of the code blocks in the second CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and a number of initial bits of the code blocks in the first CBG isgreater than a number of initial bits of the code blocks in the secondCBG.

In at least one alternative embodiment, the transmission unit representsa transmission resource specified by the communication system. Thephysical resource further includes a frequency-domain resource or acode-domain resource.

The solutions of the implementations of the disclosure are introducedmainly from the perspective of interaction between the network elements.It can be understood that, for implementing the above functions, thesender and the receiver include corresponding hardware structures and/orsoftware modules executing the functions. Those skilled in the art mayeasily realize that the units and algorithm operations of each exampledescribed in combination with the implementations disclosed in thedisclosure may be implemented by hardware or a combination of thehardware and computer software in the disclosure. Whether a certainfunction is executed by the hardware or in a manner of driving thehardware by the computer software depends on specific applications anddesign constraints of the technical solutions. Professionals may realizethe described functions for each specific application by use ofdifferent methods, but such realizations shall fall within the scope ofthe disclosure.

According to the implementations of the disclosure, functional units ofthe sender and the receiver may be divided according to theabovementioned method examples. For example, each functional unit may bedivided correspondingly to each function and two or more than twofunctions may also be integrated into a processing unit. The integratedunit may be implemented in a hardware form and may also be implementedin form of software program module. Division of the units in theimplementation of the disclosure is schematic and only logical functiondivision and another division manner may be adopted during practicalimplementation.

Under the condition that the integrated unit is adopted, FIG. 6illustrates a possible functional unit composition block diagram of adevice for implementing data mapping and transmission according to animplementation of the disclosure. The device for implementing datamapping and transmission is applied to the sender of the abovementionedimplementations. The device 600 for implementing data mapping andtransmission includes a segmenting unit 601 and a transmitting unit 602.

The segmenting unit 601 is configured to segment data to be transmittedinto N code blocks and divide the N code blocks into M CBGs. Herein, adifference between the numbers of the code blocks in any two CBGs isless than or equal to a preset value. N and M are positive integers. Nis greater than or equal to M. and N is greater than or equal to 2.

The transmitting unit 602 is configured to map the M CBGs to at leastone transmission unit for bearing and transmission. Herein, the M CBGsinclude a first CBG and a second CBG. A value of a parameter ofinformation amount of the first CBG and a value of a parameter ofinformation amount of the second CBG satisfy a preset condition. The atleast one transmission unit includes a first physical resourcecorresponding to the first CBG and a second physical resourcecorresponding to the second CBG. The first physical resource is ahead ofthe second physical resource in time domain.

In at least one alternative embodiment, the parameter of informationamount may include at least one of: the number of the code blocks in theCBG, a modulation and code level for the code blocks in the CBG, a coderate of the code blocks in the CBG, or a number of initial bits in theCBG.

In at least one alternative embodiment, the preset condition may includethat the value of the parameter of information amount of the first CBGis greater than the value of the parameter of information amount of thesecond CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is greater than the number of the code blocks in thesecond CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and the modulation and code level for the code blocks in the firstCBG is higher than the modulation and code level for the code blocks inthe second CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and the code rate of the code blocks in the first CBG is higherthan the code rate of the code blocks in the second CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and a number of initial bits of the code blocks in the first CBG isgreater than a number of initial bits of the code blocks in the secondCBG.

In at least one alternative embodiment, the transmission unit representsa transmission resource specified by the communication system. Thephysical resource further includes a frequency-domain resource or acode-domain resource.

Herein, the segmenting unit 601 may be a processor, and the transmissionunit 602 may be a radio frequency chip and the like.

When the segmenting unit 601 is the processor and the transmission unit602 is a radio frequency chip, the device for implementing data mappingand transmission in the implementation of the disclosure may be thesender illustrated in FIG. 4.

Under the condition that the integrated unit is adopted. FIG. 7illustrates a functional unit composition block diagram of a device forimplementing data mapping and transmission according to animplementation of the disclosure. The device for implementing datamapping and transmission is applied to a receiver. The device 700 forimplementing data mapping and transmission includes a receiving unit 701and a decoding unit 702.

The receiving unit 701 is configured to receive M CBGs mapped to atleast one transmission unit. The M CBGs are obtained by dividing N codeblocks. The N code blocks are obtained by segmenting data to betransmitted. A difference between the numbers of the code blocks in anytwo CBGs is less than or equal to a preset value. The M CBGs include afirst CBG and a second CBG. A value of a parameter of information amountof the first CBG and a value of parameter of information amount of thesecond CBG satisfy a preset condition. The at least one transmissionunit includes a first physical resource corresponding to the first CBGand a second physical resource corresponding to the second CBG. Thefirst physical resource is ahead of the second physical resource in timedomain. N and M are positive integers. N is greater than or equal to M,and M is greater than or equal to 2.

The decoding unit 702 is configured to decode each of the M CBGs afterthe respective CBG is received.

In at least one alternative embodiment, the parameter of informationamount may include at least one of: the number of the code blocks in theCBG, a modulation and code level for the code blocks in the CBG, a coderate of the code blocks in the CBG, or a number of initial bits in theCBG.

In at least one alternative embodiment, the preset condition may includethat the value of the parameter of information amount of the first CBGis greater than the value of the parameter of information amount of thesecond CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is greater than the number of the code blocks in thesecond CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and the modulation and code level for the code blocks in the firstCBG is higher than the modulation and code level for the code blocks inthe second CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and the code rate of the code blocks in the first CBG is higherthan the code rate of the code blocks in the second CBG.

In at least one alternative embodiment, the number of the code blocks inthe first CBG is equal to the number of the code blocks in the secondCBG, and a number of initial bits of the code blocks in the first CBG isgreater than a number of initial bits of the code blocks in the secondCBG.

In at least one alternative embodiment, the transmission unit representsa transmission resource specified by the communication system. Thephysical resource further includes a frequency-domain resource or acode-domain resource.

Herein, the receiving unit 701 may be a communication interface, and thedecoding unit 702 may be a processor.

When the receiving unit 701 is the communication interface and thedecoding unit 702 is the processor, the device for implementing datamapping and transmission in the implementation of the disclosure may bethe receiver illustrated in FIG. 5.

An implementation of the disclosure also provides a computer storagemedium, which stores a computer program, the computer program enabling acomputer to execute any operation in the implementations of thedisclosure. The computer includes a receiver and a sender.

An implementation of the disclosure also provides a computer programproduct, which includes a computer program. The computer program may beoperated to enable a computer to execute any operation in theimplementations of the disclosure. The computer includes a receiver anda sender.

The operations of the method or algorithm described in theimplementations of the disclosure may be implemented in a hardwaremanner, and may also be implemented in a manner of executing, by aprocessor, software. A software instruction may consist of acorresponding software module. The software module may be stored in arandom access memory (RAM), a flash memory, a read only memory (ROM), anerasable programmable ROM (EPROM), an electrically EPROM (EEPROM), aregister, a hard disk, a mobile hard disk, a compact disc-ROM (CD-ROM)or a storage medium in any other form well known in the art. Anexemplary storage medium is coupled to the processor, thereby enablingthe processor to read information from the storage medium and writeinformation into the storage medium. Of course, the storage medium mayalso be a component of the processor. The processor and the storagemedium may be located in an application specific integrated circuit(ASIC). In addition, the ASIC may be located in an access networkdevice, a target network device or a core network device. Of course, theprocessor and the storage medium may also exist in the access networkdevice, the target network device or the core network device as discretecomponents.

Those skilled in the art may realize that, in one or more abovementionedexamples, all or part of the functions described in the implementationsof the disclosure may be realized through software, hardware or anycombination thereof. During implementation with the software, theimplementations may be implemented completely or partially in form ofcomputer program product. The computer program product includes one ormore computer instructions. When the computer program instruction isloaded and executed on a computer, the flows or functions according tothe implementations of the disclosure are completely or partiallygenerated. The computer may be a universal computer, a dedicatedcomputer, a computer network or another programmable device. Thecomputer instruction may be stored in a computer storage medium ortransmitted from one computer storage medium to another computer storagemedium. For example, the computer instruction may be born andtransmitted from a website, computer, server or data center to anotherwebsite, computer, server or data center in a wired (for example,coaxial cable, optical fiber and digital subscriber line (DSL)) orwireless (for example, infrared, wireless and microwave) manner. Thecomputer storage medium may be any available medium accessible for thecomputer or a data storage device, such as a server and a data center,including one or more integrated available media. The available mediummay be a magnetic medium (for example, a floppy disk, a hard disk and amagnetic tape), an optical medium (for example, a digital video disc(DVD)), a semiconductor medium (for example, a solid state disk (SSD))or the like.

The abovementioned specific implementations further describe thepurposes, technical solutions and beneficial effects of theimplementations of the disclosure in detail. It is to be understood thatthe above is only the specific implementations of the implementations ofthe disclosure and is not intended to limit the protection scope of theimplementations of the disclosure. Any modifications, equivalentreplacements, improvements and the like made on the basis of thetechnical solutions of the implementations of the disclosure shall fallwithin the protection scope of the implementations of the disclosure.

1. A method for data transmission, performed by a sender, the methodcomprising: segmenting data into M code block groups (CBGs), wherein thedata comprises N code blocks, a difference between numbers of codeblocks in any two CBGs is less than or equal to a preset value, N and Mare positive integers, N is greater than or equal to M, and M is greaterthan or equal to 2; and transmitting the M CBGs on at least onetransmission unit, wherein the M CBGs comprise a first CBG and a secondCBG, and a value of a parameter of information amount of the first CBGis greater than a value of a parameter of information amount of thesecond CBG; and wherein a physical resource occupied by the first CBG isbefore a physical resource occupied by the second CBG in time domain. 2.The method of claim 1, wherein the parameter of information amountcomprises at least one of: a number of code blocks in a CBG, amodulation and coding scheme level for code blocks in a CBG, a codingrate of code blocks in a CBG, or a number of original bits in a CBG. 3.The method of claim 1, wherein the physical resource occupied by thefirst CBG is before the physical resource occupied by the second CBG intime domain comprises one of: an ending of the physical resourceoccupied by the first CBG is before an ending of the physical resourceoccupied by the second CBG in time domain; or a starting of the physicalresource occupied by the first CBG is before a starting of the physicalresource occupied by the second CBG in time domain.
 4. The method ofclaim 1, wherein the present value is
 1. 5. The method of claim 1,wherein the sender comprises a terminal device.
 6. A sender, comprisinga processor, a memory, a radio frequency chip and a program, wherein thememory is configured to store the program: the processor is configuredto execute the program to: segment data into M code block groups (CBGs),wherein the data comprises N code blocks, a difference between numbersof code blocks in any two CBGs is less than or equal to a preset value,N and M are positive integers, N is greater than or equal to M, and M isgreater than or equal to 2; and the radio frequency chip is configuredto transmit the M CBGs on at least one transmission unit, wherein the MCBGs comprise a first CBG and a second CBG, and a value of a parameterof information amount of the first CBG is greater than a value of aparameter of information amount of the second CBG; and wherein aphysical resource occupied by the first CBG is before a physicalresource occupied by the second CBG in time domain.
 7. The sender ofclaim 6, wherein the parameter of information amount comprises at leastone of: a number of code blocks in a CBG, a modulation and coding schemelevel for code blocks in a CBG, a coding rate of code blocks in a CBG,or a number of original bits in a CBG.
 8. The sender of claim 6, whereinthe physical resource occupied by the first CBG is before the physicalresource occupied by the second CBG in time domain comprises one of: anending of the physical resource occupied by the first CBG is before anending of the physical resource occupied by the second CBG in timedomain; or a starting of the physical resource occupied by the first CBGis before a starting of the physical resource occupied by the second CBGin time domain.
 9. The sender of claim 6, wherein the present valueis
 1. 10. The sender of claim 6, wherein the sender comprises a terminaldevice.
 11. A method for data transmission, performed by a receiver, themethod comprising: receiving M code block groups (CBGs) transmitted onat least one transmission unit; wherein the M CBGs are obtained bydividing N code blocks, the N code blocks are obtained by segmentingdata, a difference between numbers of code blocks in any two CBGs isless than or equal to a preset value, the M CBGs comprise a first CBGand a second CBG, and a value of a parameter of information amount ofthe first CBG is greater than a value of a parameter of informationamount of the second CBG, a physical resource occupied by the first CBGis before a physical resource occupied by the second CBG in time domain,N and M are positive integers, N is greater than or equal to M, and M isgreater than or equal to 2; and decoding each of the M CBGs after therespective CBG is received.
 12. The method of claim 11, wherein theparameter of information amount comprises at least one of: a number ofcode blocks in a CBG, a modulation and coding scheme level for codeblocks in a CBG, a coding rate of code blocks in a CBG, or a number oforiginal bits in a CBG.
 13. The method of claim 11, wherein the physicalresource occupied by the first CBG is before the physical resourceoccupied by the second CBG in time domain comprises one of: an ending ofthe physical resource occupied by the first CBG is before an ending ofthe physical resource occupied by the second CBG in time domain; or astarting of the physical resource occupied by the first CBG is before astarting of the physical resource occupied by the second CBG in timedomain.
 14. The method of claim 11, wherein the present value is
 1. 15.The method of claim 11, wherein the receiver comprises a network device.16. A receiver, comprising a processor, a memory, a communicationinterface and a program, wherein the memory is configured to store theprogram: the communication interface is configured to receive M codeblock groups (CBGs) transmitted on at least one transmission unit;wherein the M CBGs are obtained by dividing N code blocks, the N codeblocks are obtained by segmenting data, a difference between numbers ofcode blocks in any two CBGs is less than or equal to a preset value, theM CBGs comprise a first CBG and a second CBG, and a value of a parameterof information amount of the first CBG is greater than a value of aparameter of information amount of the second CBG, a physical resourceoccupied by the first CBG is before a physical resource occupied by thesecond CBG in time domain, N and M are positive integers, N is greaterthan or equal to M, and M is greater than or equal to 2; and theprocessor is configured to decode each of the M CBGs after therespective CBG is received.
 17. The receiver of claim 16, wherein theparameter of information amount comprises at least one of: a number ofcode blocks in a CBG, a modulation and coding scheme level for codeblocks in a CBG, a coding rate of code blocks in a CBG, or a number oforiginal bits in a CBG.
 18. The receiver of claim 16, wherein thephysical resource occupied by the first CBG is before the physicalresource occupied by the second CBG in time domain comprises one of: anending of the physical resource occupied by the first CBG is before anending of the physical resource occupied by the second CBG in timedomain; or a starting of the physical resource occupied by the first CBGis before a stating of the physical resource occupied by the second CBGin time domain.
 19. The receiver of claim 16, wherein the present valueis
 1. 20. The receiver of claim 16, wherein the receiver comprises anetwork device.